A127744 - OEIS

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A127744

a(n) = A121265(n) - A121295(n).

0, 0, 0, 0, 0, 5, 17, 38, 86, 365, 1530, 11770, 249015, 14102902, 5358889889, 19563802359728, 3359230167951553969, 181335944930584275675827047, 54416647690014492928933662292768842690, 6605721238793689879501639879905020611382966457124063495, 360539645288616164606228883801608423987740093330992456820074646988075733781755269

(list; graph; refs; listen; history; text; internal format)

OFFSET

10,6

COMMENTS

All terms are >= 0.

REFERENCES

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing, in "The Mathematics of Preference, Choice and Order: Essays in Honor of Peter Fishburn", edited by Steven Brams, William V. Gehrlein and Fred S. Roberts, Springer, 2009, pp. 393-402.

LINKS

Table of n, a(n) for n=10..30.

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing, arXiv:math/0611293 [math.NT], 2006-2007.

David Applegate, Marc LeBrun, N. J. A. Sloane, Descending Dungeons, Problem 11286, Amer. Math. Monthly, 116 (2009) 466-467.

CROSSREFS

Sequence in context: A087728 A072332 A212968 * A122734 A250413 A163686

Adjacent sequences: A127741 A127742 A127743 * A127745 A127746 A127747

KEYWORD

nonn

AUTHOR

David Applegate and N. J. A. Sloane, Sep 21 2007

STATUS

approved